87163447590 has 96 divisors (see below), whose sum is σ = 229869484416. Its totient is φ = 22911206400.

The previous prime is 87163447589. The next prime is 87163447607. The reversal of 87163447590 is 9574436178.

87163447590 is a `hidden beast` number, since 8 + 7 + 1 + 6 + 3 + 4 + 47 + 590 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15022690 + ... + 15028490.

It is an arithmetic number, because the mean of its divisors is an integer number (2394473796).

Almost surely, 2^87163447590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87163447590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114934742208).

87163447590 is an abundant number, since it is smaller than the sum of its proper divisors (142706036826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87163447590 is a wasteful number, since it uses less digits than its factorization.

87163447590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174 (or 8171 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 87163447590 in words is "eighty-seven billion, one hundred sixty-three million, four hundred forty-seven thousand, five hundred ninety".